rating: 4.00

Sigma 18-50mm f2.8 EX DC Macro HSM

Sigma 18-50mm f2.8 EX DC Macro HSM
Sigma 18-50mm f2.8 EX DC Macro HSM Description：Large aperture zoom lens designed specially for use with digital SLR cameras with a minimum focusing distance of 20cm (7.9"). This lens is specially designed to suit the characteristics of digital SLR cameras and provides a high level of optical performance. It has a large aperture of F2.8 throughout the entire zoom range, offers superior peripheral brightness as well as a compact and lightweight construction. A maximum magnification of 1:3, making it ideal for close-up photography.

Sigma 18-50mm f2.8 EX DC Macro HSM Overview


This lens is specially designed to suit the characteristics of digital SLR cameras and provides a high level of optical performance. It has a large aperture of F2.8 throughout the entire zoom range, offers superior peripheral brightness as well as a compact and lightweight construction. A maximum magnification of 1:3, making it ideal for close-up photography.

A minimum focusing distance of 20cm (7.9"), a maximum magnification of 1:3

This large aperture standard zoom lens, with close-up ability, is ideal for portrait and snap shots.

Large aperture of F2.8 throughout the entire zoom range

Large aperture enables easy confirmation of focusing from bright viewfinder. This lens is perfectly suited for low light conditions indoors or at dusk.

Excellent optical design

Special Low Dispersion (SLD) and Extraordinary Low Dispersion (ELD) glass elements provide excellent correction of color aberrations. This lens produces an exceptional level of optical performance.

Compact and lightweight lens

Its design incorporates both glass-mold and hybrid aspherical lens technology which offers a compact and lightweight construction.

Reduced Ghosting and Flare

The super multi-layer lens coating reduces flare and ghost. High image quality is assured throughout the entire zoom range.

Inner Focus System

An inner focusing system eliminates front lens rotation, making the lens particularly suitable for using the petal-type lens hood (supplied) plus circular polarizing filters.

HSM (Hyper Sonic Motor) for Nikon Mounts Only

The Incorporation of HSM is capable of autofocusing with all Nikon DSLR cameras.

Sigma 18-50mm f2.8 EX DC Macro HSM Specifications

·Lens Construction
15 Elements in 13 Groups
 
·Angle of View  76.5 - 31.7 degrees

·Number of Diaphragm Blades  7 Blades

·Minimum Aperture F22

·Minimum Focusing Distance  20cm/7.9 in.

·Maximum Magnification  1:3

·Filter Size  Diameter 72mm 

·Dimensions  Diameter 79mm x 85.3mm 3.1 in. X 3.4 in.

·Weight  535g/18.9 oz. 

·Corresponding AF Mounts
NIKON
 

    

Sigma 18-50mm f2.8 EX DC Macro HSM user reviews

    "I choose Sigma 18-50mm f2.8 EX DC Macro HSM as a standard zoom for my 40D because it covers all focal lengths I use for indoor shooting (from group photos and interiors to close-up portraits) while providing fastest aperture available for DSLR zooms, which is absolutely a must have for shallower depth-of-field portraits ans for low-light photography. I was considering another similar lenses: Tamron 18-50/2.8 and Canon 17-55/2.8 IS USM, but the Tamron usually collects a bit lower ratings on Web than the Sigma and was not available in shops at the moment; the Canon got IS, USM, great reviews and superb sample images but it looks a bit overpriced (2.5 times higher than the third-party lenses - if I wanted to spend that much I'd rather upgrade to a full frame camera and L lenses); its main advantage is IMO Image Stabilization, but when I'm photographing people and get blurred images it's usually because of their movement, not because of camera shake. As for non-USM focusing, the lens is quite fast and not too loud (although focusing sound is clearly audible). So I decided to go for Sigma and so far I'm absolutely not disappointed. I prefer to never use flash and I shoot a lot of portratis so I almost always use the lens at f/2.8 and it works good enough on that aperture, giving pixel-per-pixel sharpness and with very minor CA at corners at widest angle. IQ advantage over Canon EF-S 18-55 is overwhelming, especially at shorter focal lengths, even at f/2.8 vs. any aperture of 18-55: better sharpness, contrast, way lower distortion, and etc. Can't directly compare IQ to another zoom lenses of this range as I'm mostly into prime lenses and only used a few other zooms of different focal range, but I'm sure it won't lose to any other zoom of this price range. Another advantage of the lens is 1:3 macro capability, which is more than enough for pets, flowers and so on."
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